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package urpm::parallel_ka_run;
# $Id$
#- Copyright (C) 2002, 2003, 2004, 2005 MandrakeSoft SA
#- Copyright (C) 2005 Mandriva SA
use strict;
use urpm::util;
use urpm::msg;
use urpm::parallel;
our @ISA = 'urpm::parallel';
(our $VERSION) = q($Revision$) =~ /(\d+)/;
our $mput_command = $ENV{URPMI_MPUT_COMMAND};
our $rshp_command = $ENV{URPMI_RSHP_COMMAND};
if (!$mput_command) {
($mput_command) = grep { -x $_ } qw(/usr/bin/mput2 /usr/bin/mput);
}
$mput_command ||= 'mput';
if (!$rshp_command) {
($rshp_command) = grep { -x $_ } qw(/usr/bin/rshp2 /usr/bin/rshp);
}
$rshp_command ||= 'rshp';
sub _rshp_urpm {
my ($parallel, $urpm, $rshp_option, $cmd, $para) = @_;
my $command = "$rshp_command $rshp_option $parallel->{options} -- $cmd --no-locales $para";
$urpm->{log}("parallel_ka_run: $command");
$command;
}
sub _rshp_urpm_popen {
my ($parallel, $urpm, $cmd, $para) = @_;
my $command = _rshp_urpm($parallel, $urpm, '-v', $cmd, $para);
open(my $fh, "$command |") or $urpm->{fatal}(1, "Can't fork $rshp_command: $!");
$fh;
}
sub urpm_popen {
my ($parallel, $urpm, $cmd, $para, $do) = @_;
my $fh = _rshp_urpm_popen($parallel, $urpm, $cmd, $para);
while (my $s = <$fh>) {
chomp $s;
my ($node, $s_) = _parse_rshp_output($s) or next;
$do->($node, $s_) or last;
}
close $fh or $urpm->{fatal}(1, N("rshp failed, maybe a node is unreacheable"));
}
sub _run_mput {
my ($parallel, $urpm, @para) = @_;
my @l = (split(' ', $parallel->{options}), '--', @para);
$urpm->{log}("parallel_ka_run: $mput_command " . join(' ', @l));
system $mput_command, @l;
$? == 0 || $? == 256 or $urpm->{fatal}(1, N("mput failed, maybe a node is unreacheable"));
}
#- parallel copy
sub parallel_register_rpms {
my ($parallel, $urpm, @files) = @_;
_run_mput($parallel, $urpm, @files, "$urpm->{cachedir}/rpms/");
urpm::parallel::post_register_rpms($parallel, $urpm, @files);
}
#- parallel resolve_dependencies
sub parallel_resolve_dependencies {
my ($parallel, $synthesis, $urpm, $state, $requested, %options) = @_;
#- first propagate the synthesis file to all machines
_run_mput($parallel, $urpm, $synthesis, $synthesis);
$parallel->{synthesis} = $synthesis;
my $line = urpm::parallel::simple_resolve_dependencies($parallel, $urpm, $state, $requested, %options);
#- execute urpmq to determine packages to install.
my ($cont, %chosen);
do {
$cont = 0; #- prepare to stop iteration.
#- the following state should be cleaned for each iteration.
delete $state->{selected};
#- now try an iteration of urpmq.
$parallel->urpm_popen($urpm, 'urpmq', "--synthesis $synthesis -fduc $line " . join(' ', keys %chosen), sub {
my ($node, $s) = @_;
urpm::parallel::parse_urpmq_output($urpm, $state, $node, $s, \$cont, \%chosen, %options);
});
#- check for internal error of resolution.
$cont == 1 and die "internal distant urpmq error on choice not taken";
} while $cont;
#- keep trace of what has been chosen finally (if any).
$parallel->{line} = join(' ', $line, keys %chosen);
}
#- parallel install.
sub parallel_install {
my ($parallel, $urpm, undef, $install, $upgrade, %options) = @_;
_run_mput($parallel, $urpm, values %$install, values %$upgrade, "$urpm->{cachedir}/rpms/");
my (%bad_nodes);
$parallel->urpm_popen($urpm, 'urpmi', "--pre-clean --test --no-verify-rpm --auto --synthesis $parallel->{synthesis} $parallel->{line}", sub {
my ($node, $s) = @_;
$s =~ /^\s*$/ and return;
$bad_nodes{$node} .= $s;
$s =~ /Installation failed/ and $bad_nodes{$node} = '';
$s =~ /Installation is possible/ and delete $bad_nodes{$node};
});
foreach (keys %{$parallel->{nodes}}) {
exists $bad_nodes{$_} or next;
$urpm->{error}(N("Installation failed on node %s", $_) . ":\n" . $bad_nodes{$_});
}
%bad_nodes and return;
if ($options{test}) {
$urpm->{error}(N("Installation is possible"));
1;
} else {
my $line = $parallel->{line} . ($options{excludepath} ? " --excludepath '$options{excludepath}'" : "");
#- continue installation.
system(_rshp_urpm($parallel, $urpm, '', 'urpmi', "--no-verify-rpm --auto --synthesis $parallel->{synthesis} $line")) == 0;
}
}
sub _parse_rshp_output {
my ($s) = @_;
#- eg of output of rshp2: <tata2.mandriva.com> [rank:2]:@removing@mpich-1.2.5.2-10mlcs4.x86_64
if ($s =~ /<([^>]*)>.*:->:(.*)/ || $s =~ /<([^>]*)>\s*\[[^]]*\]:(.*)/) {
($1, $2);
} else {
warn "bad rshp output $s\n";
();
}
}
#- allow to bootstrap from urpmi code directly (namespace is urpm).
package urpm;
no warnings 'redefine';
sub handle_parallel_options {
my (undef, $options) = @_;
my ($media, $ka_run_options) = $options =~ /ka-run(?:\(([^\)]*)\))?:(.*)/;
if ($ka_run_options) {
my ($flush_nodes, %nodes);
foreach (split ' ', $ka_run_options) {
if ($_ eq '-m') {
$flush_nodes = 1;
} else {
$flush_nodes and $nodes{/host=([^,]*)/ ? $1 : $_} = undef;
undef $flush_nodes;
}
}
return bless {
media => $media,
options => $ka_run_options,
nodes => \%nodes,
}, "urpm::parallel_ka_run";
}
return undef;
}
1;
|
